Henry b



(No Model.)

- H; B. BEACH. JOINERS PLANE.

*Patented Nov:

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`1;"5 a transverse section on line z z,- Fig'.

,y IlNirEn STATES- `PATENT @Erica HENRY n. BEACH, or MEEIDEN,coNNEcfrrc-UT, l.fissIcNoi-t fro rri-IE MEEIDEN t/IALLEAELE IRONcoMrANY, or SAME PLACE.

JOINERS PLANE.

SPECIFICATION forming para of Letters Patent No. 289,332, dateulvvemter2:7, ieee.

` Y Application filed September 10, 188.?. (No model) To C//ZZ whom, tmrtg/concern,.-

Meriden, in the county of New Haven and y State of Connecticut, haveinvented a new Im- 5 provement in Joincrs Planes; and I do hereby`declare the following, when taken in connection with accompanyingdrawings and the letters 'of reference marked thereon, to be a full,clear, and exact description of the same, and y which said drawingsconstitute part of this specification, and represent, in-f- Figure l, asectional side view; Fig. 2,-a top view; Fig.` 3, a transverse sectionon line 90m; i Fig. 4, a transversesection on line 3/ y; Fig. 5, 6, atransyerse section through the clamping-bar h,- Fig. an edge view of thecap. 3, s This invention relates to an improvementin that class ofplanes for joinersfuse in which the stock is made fronrcast metal, theobject of the invention being a simple, ready, and positive adjustmentand firmness ofthe planeiron when once it isset in the required position; and the invention consists in the construction, as more full yhereinafter described, s and particularly recited in the claims. A,represents the stock, made from cast-iron, fitted with the usual handle,B. Upon the inner surf'ace of each side of the stock is a ledge, a,inclined in aline from the mouth, according to the pitch required forthe plane-iron. These ledges form supports for the bed C, and on theupper surface of which the bed reststhatis to say, the bed lies uponthese inclines. Below these inelinedbearings a, and centrally betweenthe two sides, a screw-stud, D, isset in a plane parallel with theinclines both vertically and horizontally, as seen in Fig. 1. From theunder side of the bed a lng, E, extends downward, with an opening'through it corresponding to the screw-stud D, and so as to pass freelyover the stud;

F is a nut iitted to the scr-ewstud, and carrying a collar, The lug isrecessed transversely to form a slot, d, to receive the collar b of thenut, and so that in placing the bed in its position the nut is first setinto engagement with the slot d, then the bed moved down to carry thelugover the screw-stud, and so as to K. The arrangement of l theplaneiron is secured to the bed may be any of the usual constructions.

`adjListing-screw, I arrange a bar,

l ,i f permit the nut to engage the screw; then turn! 5o Be it knownthat I, HENRY B. BEACH, of

ing the screw in one direction will move the bed downward, and in `thereverse will draw it upward. s

On the bed C the plane-iron G is placed, and over this the clamp H,and,thcn upon that the clamp I, which is secured by a set-screw,

the clamp whereby As here represented, aheaded tached to the clamp I,passes through beneath `the cap and iron and engages a slot in the bedbelow, so as to form a fulerum for the clamp. Then the point of theclamp bears upon the iron, the power being applied through` the screw Kto force the point into its clamping L positiona usual and well-knownconstruction. The bed is held down at its lower end by an L-shaped lug,e, engaging a corresponding L-,shaped flange, j', on the stock.` 70 i(See Figs. l and 5.)

In the` usual construction of this class of clamps thescrew is made tobear at a central point and over a comparatively small surface.

Unless the corresponding surfaces of the bed 75 and plane-iron make aperfect fit between the two, the iron is easily thrownout of adjust--nient. Toincrease this bearing-surface ofthe h, in a slot transverselyacross Lon the nnderside of the 30 head ofthe clamp, and it should be inlength nearly the width of the plane-iron. Thisis engaged with theset-screw by upsetting the screw upon the under side of the bar, asseenin Figs. land 6, but so as to leave the screw S5 free to turn in thebar; hence by turning vthe screw in one direction the bar will be drawninto the slot, and turned in the opposite direction will be forceddownwarc. This transverse bar affords a long surface of bearing upon theplane-iron, and so that the force ofthe screw is applied to that entiresurface; hence so broad or extended a bearin g upon the planeiron isattained as to prevent the possibility of accidental displacement. Inthis class of 9 5 planes in which a cap is employed in connection withthe plane-iron a diflicultyis experienced in properly fitting the edgeof the cap stud, L, 6o i to the surface of the plane-iron, or to bringit into a firm and close bearing entirely across the face'of theplane-iron, and if it be not thus perfectly fitted shavings will workbetween the two and inconvenience the workman. In the usual constructionof cap the edge is drawn down thin and turned toward the plane-iron, soas to raise that portion of the. cap back of its edge from the iron;then the set-screw i applied is relied upon to draw the cap properlyonto the iron; but this set-screw is necessarily so far from the footthat unless both the iron and the cap are perfect in their constructionthe requisite fit cannot be attained. To overcome this difficulty Ireduce the cap in thickness a little above the foot, as at l, Figs. 1and 7, so as to weaken the cap at that point. rlhen the screw is appliedin the usual manner. The clamp bears upon the cap at this reduced lpoint, as seen at Fig. l, and applies apressure which, because of thereduction in thickness ofthe cap, will canse the foot of the cap tospring into the shape to fit closely andentirely across the face of theplane-iron. This construction permits the cap to be drawn into closecontact with the iron around the setscrew, as shown, thus making a firmconnection between the cap and iron, so that displacement ot' the cap isimpossible, and the clamp serves to bring the foot of the cap into itsproper relation to the face of the iron; and this construction alsoenables me to make the cap of thicker material than can be done wherethere is no such reduction in thickness, for without the reduction theremust be sufficient spring in the cap to permit the screw which holds itin place to draw the cap down to the iron; but this reduction inthickness requires less power upon the screw, and also enables the clampto properly hold the cap in place.

In adjustable mouth planes-that is, planes which have the bottom foreend adjustable, so as `to i take the forward edge. of the mouth nearerto or farther from the iron, as occasion may requirea difficulty isexperienced. .from the fact that the adjustable portion is liable to beforced against or into contact with the cutting-edge of the iron,consequently dulling the plane. To obviate this difficulty I constructthe adj ustable part M so as to be moved toward or from the mouth in theusual manner, and upon its upper surface form a socket, N, fitted with a'female screw, the socket arranged to work in a longitudinal recess, O,in

the stock, the recess being constructed with relation to the socket N sothat the rear side of the socket will strike the rear end of the slot Ojust before the adjustable piece M will reach the edge of theiron, andthrough a slot,

l), into the recess a set-screw, R, passes into the socket N to bind theadjustable part in any position to which it may be set.

The set-screw itself may form the stop, in stead of the socket-that is,the slot P, through which 'the set-screw passes, may be of such lengththat the body of the screw will strike the forward -end of the slot justbefore the adjustable piece M will reach the edge of the iron, it onlybeing essential to this part of my invention that there shall be a stopto thus arrest the adjustable piece M.

l claiml. In a metal plane, the combination of the stock, constructedwith inclined lugs a upon its two sides to support the bed, the bed C,arranged to ride upon said lugs, the screw'stud D, fixed in the stockand parallel with the plane ofthe bed, a lug, E, extending from the bedand arranged to work over said screw-stud, said lug constructed with atransverse recess, d, the nut F, constructed with the collar b,corresponding to the said recess d, and mechanism,substantially such asdeseribed,to clamp the iron upon the bed, all substantially asspecified.

2. In a metal plane substantially such as described, the clamp l, bywhich the planeiron is secured to the bed, combined with a transversebar, 71, and adj listing-screw Kv, substantially as specified.

3. ln a joiners plane substantially such as described, the cap H, havingits thickness reduced transversely near its foot, substantially as andvfor the purpose described.

4. In a joiners plane, the combination of 95 a bed made adjustable, aplane-iron upon said bed, a clamp in connection with said bed, the capH, reduced in thickness transversely near its foot, said clamp arrangedto bear upon said cap near its reduced thickness, and mechanism,substantially such as described, to force said clamp to thus bear uponthe cap, substantially as specified.

HENRY B. BEACH.

Vitn esses:

E. A..MERR1MAN, Crus. XVM. MANN.

IOO

